# capture_generic.py
import json
import sqlite3
from datetime import datetime
from pathlib import Path

from playwright.sync_api import sync_playwright

DB_PATH = "bsg.sqlite3"
SESSION_DIR = "pw_session_vscode"
CAPTURE_DIR = "captures"


def init_db():
    con = sqlite3.connect(DB_PATH)
    cur = con.cursor()

    cur.execute("""
    CREATE TABLE IF NOT EXISTS snapshots (
        id INTEGER PRIMARY KEY AUTOINCREMENT,
        round TEXT NOT NULL,
        page_url TEXT NOT NULL,
        page_title TEXT,
        captured_at TEXT NOT NULL,
        page_html TEXT
    )
    """)

    cur.execute("""
    CREATE TABLE IF NOT EXISTS tables (
        id INTEGER PRIMARY KEY AUTOINCREMENT,
        snapshot_id INTEGER NOT NULL,
        table_index INTEGER NOT NULL,
        caption TEXT,
        outer_html TEXT NOT NULL,
        json_rows TEXT NOT NULL,
        FOREIGN KEY(snapshot_id) REFERENCES snapshots(id)
    )
    """)

    con.commit()
    return con


def extract_tables(page):
    """
    Returns list of dicts:
      [{ index, caption, outer_html, rows }]
    where rows is a simple 2D list of cell texts.
    """
    script = r"""
    () => {
      const tables = Array.from(document.querySelectorAll("table"));
      return tables.map((t, i) => {
        const cap = t.querySelector("caption");
        const caption = cap ? cap.innerText.trim() : null;

        const rows = Array.from(t.querySelectorAll("tr")).map(tr => {
          return Array.from(tr.querySelectorAll("th,td")).map(cell => {
            return (cell.innerText || "")
              .replace(/\s+/g, " ")
              .trim();
          });
        });

        return { index: i, caption, outer_html: t.outerHTML, rows };
      });
    }
    """
    return page.evaluate(script)


def save_snapshot(con, round_id, url, title, page_html, tables):
    cur = con.cursor()
    captured_at = datetime.now().isoformat(timespec="seconds")

    cur.execute(
        "INSERT INTO snapshots(round, page_url, page_title, captured_at, page_html) VALUES(?,?,?,?,?)",
        (round_id, url, title, captured_at, page_html)
    )
    snapshot_id = cur.lastrowid

    for t in tables:
        cur.execute(
            "INSERT INTO tables(snapshot_id, table_index, caption, outer_html, json_rows) VALUES(?,?,?,?,?)",
            (snapshot_id, int(t["index"]), t.get("caption"), t["outer_html"], json.dumps(t["rows"]))
        )

    con.commit()
    return snapshot_id, captured_at


def write_snapshot_files(round_id, snapshot_id, url, title, captured_at, page_html, tables):
    snap_dir = Path(CAPTURE_DIR) / round_id / f"snapshot_{snapshot_id:04d}"
    tables_dir = snap_dir / "tables"
    tables_dir.mkdir(parents=True, exist_ok=True)

    meta = {
        "snapshot_id": snapshot_id,
        "round": round_id,
        "url": url,
        "title": title,
        "captured_at": captured_at,
        "table_count": len(tables),
        "tables": [{"index": t["index"], "caption": t.get("caption")} for t in tables]
    }

    (snap_dir / "meta.json").write_text(json.dumps(meta, indent=2), encoding="utf-8")
    (snap_dir / "page.html").write_text(page_html, encoding="utf-8")

    for t in tables:
        idx = int(t["index"])
        (tables_dir / f"table_{idx:02d}.json").write_text(
            json.dumps({"index": idx, "caption": t.get("caption"), "rows": t["rows"]}, indent=2),
            encoding="utf-8"
        )
        (tables_dir / f"table_{idx:02d}.html").write_text(t["outer_html"], encoding="utf-8")


def pick_capture_page(context):
    """
    Pick the page/tab that most likely contains the report you want.
    - Ignore about:blank
    - Prefer a non-lobby URL if available
    - Otherwise use the most recently opened page
    """
    pages = [p for p in context.pages if p.url and p.url != "about:blank"]
    if not pages:
        return context.pages[0]

    non_lobby = [p for p in pages if "/users/lobby" not in p.url]
    if non_lobby:
        return non_lobby[-1]

    return pages[-1]


def safe_page_read(page):
    """
    Read url/title/html with a little safety in case the page is navigating.
    """
    try:
        url = page.url
        title = page.title()
        html = page.content()
        return url, title, html, None
    except Exception as e:
        return None, None, None, e


def main():
    con = init_db()
    round_id = input("Round label (e.g., Y11 / Round1): ").strip() or "Round1"

    Path(SESSION_DIR).mkdir(parents=True, exist_ok=True)
    Path(CAPTURE_DIR).mkdir(parents=True, exist_ok=True)

    with sync_playwright() as p:
        context = p.chromium.launch_persistent_context(
            user_data_dir=SESSION_DIR,
            headless=False
        )
        page = context.new_page()

        print("\nBrowser opened.")
        print("✅ Log in manually (first time only).")
        print("✅ Navigate to a BSG report page (may open a new tab).")
        print("✅ Press Enter here to CAPTURE the most relevant tab.\n")

        while True:
            cmd = input("Enter = capture | 'q' = quit: ").strip().lower()
            if cmd == "q":
                break

            # ✅ Pick the most relevant current tab/page (reports often open new tabs)
            page = pick_capture_page(context)

            url, title, html, err = safe_page_read(page)
            if err:
                print(f"Could not read current page (maybe navigating). Try again.\nError: {err}")
                continue

            tables = extract_tables(page)
            if not tables:
                print(f"No <table> tags found on this page: {url}")
                continue

            snapshot_id, captured_at = save_snapshot(con, round_id, url, title, html, tables)
            write_snapshot_files(round_id, snapshot_id, url, title, captured_at, html, tables)

            print(f"\n✅ Captured snapshot {snapshot_id:04d}")
            print(f"   Captured from: {url}")
            print(f"   Title: {title}")
            print(f"   Tables found: {len(tables)}")
            print(f"   📁 Files: {CAPTURE_DIR}/{round_id}/snapshot_{snapshot_id:04d}/")

            for t in tables[:10]:
                cap = t.get("caption") or "(no caption)"
                print(f"   - table[{t['index']}]: {cap}")
            if len(tables) > 10:
                print(f"   ...and {len(tables) - 10} more tables")

        context.close()

    con.close()
    print("Done.")


if __name__ == "__main__":
    main()